Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The red FNSL4R configuration supplies 12.88-inch SRP rotors for a Big Ford New Style housing with a 2.50-inch axle offset. Its internal parking-brake assemblies and 6 x 5.5-inch drilling define the axle and cable requirements for installation. Wilwood Engineering’s disc brake systems and components serve motorsport, street-performance and specialized applications. Bill Wood founded the company in 1977; it is based in Camarillo, California. Wilwood designs and manufactures brake rotors and calipers as well as master cylinders, valves, brake lines and fittings. Selecting compatible components is essential to the complete system.
Technical Details
- Manufacturer part number: 140-18151-DR
- Service calipers: Forged Narrow Superlite 4R; 4 pistons; radial mount; Red Powder Coat
- Brake rotors: 12.88 x 1.10 inches; Spec-37 Iron; SRP Drilled & Slotted; vented construction
- Pads: BP-10; piston material: Stainless
- Caliper body material: Forged aluminum
- Hydraulic inlet: 1/8-27 NPT
- Rotor/hat wheel-stud clearance pattern(s): 6 x 5.5 in; 6 x 139.7 mm; match the installed hub/axle pattern
- Housing/flange application: Big Ford New Style
- Required axle offset: 2.50 in; 63.5 mm
- Parking brake: included internal drum/shoe assembly; cable and clevis hardware are not included
- Hydraulic brake hoses: not included; select the correct application-specific lines/fittings
- Wheel clearance: 17-inch wheels may fit; verify the manufacturer’s complete caliper/rotor template for the installed wheel
- Supplied as one kit with mounting hardware; spindles, hubs, master cylinder and booster are not included
Fitment & Compatibility
The 12.88-inch Superlite parking package needs a Big Ford New Style housing with the correct large-bearing flange. Verify the 2.50-inch axle offset and 6 x 5.5-inch lug pattern on the installed axle. The generic Town Car entry is conditional on that hardware and does not establish compatibility with a stock 1990 Town Car rear axle.
The supplied internal parking shoes require separate cables and clevis hardware. Use DS1649 to measure the 2.80-inch axle register, check the 6.80-inch maximum flange diameter and apply the specified edge chamfer. Plan new hydraulic hoses/fittings because the original lines cannot connect directly to this conversion.
Confirm the applicable vehicle entry and all numbered notes in the fitment table below.
Manufacturer Resources
- Exact Wilwood kit specifications and wheel-clearance information
- Installation instructions and component list
- Axle-offset measurement worksheet
WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.
PMB Performance brings over 20 years of experience with brake components and fitment details. Send us your VIN together with the installed axle, spindle, brake and wheel specifications if you need help confirming this package.
Vehicle Applications
| Years | Make | Model | Model option | Front brakes | Rear brakes | Kit application | Notes |
|---|---|---|---|---|---|---|---|
| 1990 | Lincoln | Town Car | All | Disc | Drum | Rear Kit | 1 |
Application Notes
- Line kit included (manufacturer): None
